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Key Technologies for the Industrial Preparation and Application of Bio-Based Nylon PA1012

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  • Release time: 2025-03-22

Bio-Based Nylon PA1012 Resin: Excellent Comprehensive Performance and Processability, Widely Used in Automotive Fuel Lines, Brake Tubes, Oil and Gas Delivery Pipes, and Oil-Resistant Structural Components

 

Bio-based nylon PA1012 resin boasts exceptional comprehensive performance and excellent processability, making it widely applicable in the manufacturing of automotive fuel lines, brake tubes, oil and gas delivery pipes, and oil-resistant structural components. For many years, China has relied on imports for this material. This project focused on three key research areas, developed six core technologies, and successfully achieved the industrialization of long-chain polyamides derived from bio-fermentation. A demonstration production line with an annual capacity of 10,000 tons was established, forming core technologies with independent intellectual property rights. The main innovations are as follows:

 

(1) Controlled Polymerization Technology for Long-Chain Polyamide Resins

  • Clarified the composition, content, and morphology of homologous and organic/inorganic impurities in raw materials, as well as their impact on monomer quality control and polymerization reactions.
  • Utilized a micro-polymerization reaction system to study the reaction kinetics, thermodynamics, process conditions, and resin formulations of long-chain polyamides, providing a theoretical basis for industrial production and resin quality control.
  • Investigated the structural and functional design of large-scale polymerization reactors to achieve precise control of parameters such as pressure, temperature, and pH. Established the relationship between reaction conditions and polymerization degree, enabling the controlled polymerization and industrial production of a series of long-chain polyamide resins (e.g., bio-based nylon PA1012 and PA1212).

 

(2) Molecular Weight Regulation Technology During Solid-State Polymerization

  • Developed a rapid characterization technique for solid-state viscosity enhancement using rheological methods. Established the relationship between reaction time, reaction temperature, and resin molecular weight and its distribution.
  • Extended this technology to industrial-scale solid-state viscosity enhancement processes, achieving controlled and large-scale production of initial resin molecular weight during solid-state polymerization.

This project has not only broken the long-standing reliance on imports but also established a robust foundation for the domestic production of bio-based nylon PA1012, paving the way for its broader application in high-performance industrial and automotive fields.

 

 

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(3) High-Efficiency Solid-State Polymerization Technology with Vacuum-Nitrogen Atmosphere Seamless Conversion

  • Developed techniques for adding heat stabilizers and catalysts during different process stages, optimized catalyst selection, and created a high-efficiency solid-state polymerization technology with seamless vacuum-nitrogen atmosphere conversion.
  • Achieved efficient and controlled solid-state polymerization through process control and catalyst-assisted reactions, enhancing the quality and stability of PA1012 and bio-based nylon PA1012 resins.
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(4) Preparation Technology of High-Performance Bio-Based Nylon PA1012 Pipe Specialized Material

  • Tailored to the performance requirements of high-performance polyamide PA1012 pipe materials, modified the resin using methylbenzenesulfonamide and polyolefin elastomers.
  • Investigated the toughening mechanism, revealing the fundamental principles of bio-based nylon PA1012 toughening at the molecular and micro-scale levels, enabling the preparation of specialized PA1012 pipe materials.

 

(5) High-Strength and High-Toughness Long-Chain Polyamide Nanocomposites

  • Prepared a series of long-chain polyamide-based composites and alloy materials with high strength, heat resistance, flexibility, and excellent optical properties using nano-composite, fiber reinforcement, and polymer blending technologies.
  • Established a range of industrial preparation technologies for high-performance specialized long-chain polyamide resins with independent intellectual property rights.

 

(6) Preparation Technology of Antistatic Long-Chain Polyamide Fuel Pipe Specialized Material

  • Addressed the challenges of uniform dispersion and interfacial compatibility of carbon nanotubes in the resin matrix, developing antistatic long-chain polyamide specialized materials for fuel pipes.
  • Prototyped three fuel pipes with different diameters and working pressures, all meeting performance requirements, laying the foundation for the future promotion and application of domestically produced high-performance long-chain polyamide resins.

 

Performance and Impact
Tests conducted by the National Quality Supervision and Inspection Center for Polymer Materials and Products confirmed that the main technical indicators of bio-based nylon PA1012 and PA1212 resins exceed the best levels of domestic counterparts and reach international advanced standards, with some indicators achieving global leadership.

 

Significance
The realization of large-scale production technology for high-performance long-chain polyamide resins provides fundamental support for the development of special materials under China’s ongoing "Strengthening the Foundation Project." It ensures the construction of domestically produced high-performance long-chain polyamide materials with core technologies, offering reliable technical and product guarantees for achieving the goal of import substitution.

 
 
 
 
 
url: https://yanmeiplastics.com/news/Key-Technologies-for-the-Industrial-Preparation-and-Application-of-Bio-Based-Nylon-PA1012.html
Keywords: Bio-based Nylon Bio-based Nylon PA1012 PA1012

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